Delphinium geraniifolium |
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Clark Valley larkspur, Mogollon larkspur |
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Stems | 60-100 cm; base reddish, puberulent, midstems pubescent. |
Leaves | blade dark green, at least adaxially, fan-shaped to reniform, 2-5 × 3-7 cm, pubescent, especially abaxially; ultimate lobes 5-15, width 4-15 mm (basal lobes 5-15 mm), apex abruptly tapered, usually mucronate; veins prominent. |
Inflorescences | 20-90-flowered, dense, cylindric; pedicel ascending to spreading, 1-2 cm, puberulent; bracteoles 1-2 mm from flowers, green, linear, 4-6 mm, puberulent. |
Flowers | sepals dark blue to purple, puberulent, lateral sepals spreading to slightly forward pointing, 10-14 × 3-5 mm, spurs ascending 20-70°, truncate or downcurved apically, 12-15 mm; lower petal blades slightly elevated, ± exposing stamens, 4-6 mm, clefts 0.5-2 mm; hairs sparse, local below junction of blade and claw, scattered on margins, white. |
Fruits | 13-18 mm, 3-3.5 times longer than wide, puberulent. |
Seeds | unwinged; seed coat cells with margins straight, surfaces ± roughened. |
2n | = 16. |
Delphinium geraniifolium |
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Phenology | Flowering summer. |
Habitat | Heavy clay soil, dry meadows in coniferous woods |
Elevation | 1800-3400 m (5900-11200 ft) |
Distribution |
AZ; NM
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Discussion | Delphinium geraniifolium is a more pubescent analog of the closely related D. scopulorum, the former occurring in heavier soils at higher elvation. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 3. |
Parent taxa | Ranunculaceae > Delphinium > sect. Diedropetala > subsect. Wislizenana |
Sibling taxa | |
Synonyms | D. tenuisectum subsp. amplibracteatum |
Name authority | Rydberg: Bull. Torrey Bot. Club 26: 583. (1899) |
Web links |